If he has high blood pressure this could be the cause of his symptoms. It could be that he's getting over heated too. Is he taking any medication to control his blood pressure?
he is 28. n yes he has had high bp and hypertension some time back.
Hi,
How old is your brother?, Is it known that he has high BP?, or you are guessing he may have.Having regular head ache, breathing problem and feeling dizzy at times are sufficient reasons to seek medical advice. He could see a physician and get check up done.
Solace